Page rank was breaking after one iteration. #3
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jshun
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Jul 8, 2015
Page rank was breaking after one iteration.
gposluns
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Oct 23, 2024
Title: Fine-Grain SetCover_Serial Implementation Brief comment: Implementing the Swarm version of serial SetCover algorithm, and improve the performance by breaking the main function into finer tasks: addSet, coverElement and removeSet Test plan: I verified this commit does not cause application crashes when running: scons -j1 --gcc runtime=swarm ligra scons -j16 --gcc runtime=swarm ligra ~/sim/build/opt/sim/sim -config ~mcj/swarm-configs/1c.cfg -- ./build/release/ligra/apps/bucketing/plsSetCover_fg -rounds 0 ./inputs/pbbs/mis/cage10.pbbs ~/sim/build/opt/sim/sim -config ~mcj/swarm-configs/16c.cfg -- ./build/release/ligra/apps/bucketing/plsSetCover_fg -rounds 0 ./inputs/pbbs/mis/cage10.pbbs Co-authored-by: Mark Jeffrey <mcj@ece.utoronto.ca>
gposluns
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Oct 23, 2024
1) Remove isSetCovered as it is equivalent to cardinality == 0 2) This makes hint selection far more obvious 3) Use enqueuer trees for the equally unordered tasks Point jshun#3 could bite us for extremely high-degree vertices. But the __enqueuer is a lot more efficient than the progressive enqueuer. Unfortunately on the cage10 input, execution time is dominated by coalescers and splitters. Is this something inherent (and Hive would fix), or do we have a performance bug somewhere?
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Page rank was breaking after a single iteration. Seems like that that "break" was added there for timing purposes.